Perceivable

✎ Technique: Writing captions

Captions allow people who can't hear a video's soundtrack to have access to a text version of the information provided in the audio.

If you decide to caption your own video content rather than outsource this job to a captioning service, make sure the captions provide an accurate and meaningful alternative to the audio. In particular, when writing captions for audio content in a video, make sure all the spoken content is available in captions, as well as indications of speaker switching (using ">> SPEAKER NAME:") and...

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✎ Technique: Using diagrams to illustrate text

People differ in the way that they can (or like to) consume information, especially in educational contexts. Some people might prefer information provided in text, or video, or audio; and their accessibility needs can also influence their preferences.

But while accessibility for images often focuses on providing a text alternative for screen-reader users, we can also look at the issue from the other way around—providing a graphic alternative for text to make the underlying information or concept easier to understand. This...

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